Weather strip



- June 15, 3.943. c, v, MANCINI WEATHER STRIP Filed Sept.

INVENTOR CARLO v. MANCINI AT ToRNEx Patented June 15, 1943 UNITED STATESATENT orries 2,321,924 WEATHER sTniP Carlo v. Mancini, Stratford, 001m.

Application September 30, 1940, Serial No. 358,112

2 Claims.

This invention relates to new and useful improvements in window and doorconstructions and has particular relation to weather stripping for suchconstructions.

The objects and advantages of the invention will become apparent from aconsideration of the following detailed description taken in connectionwith the accompanying drawing wherein a satisfactory embodiment of theinvention is shown. However, it is to be understood that the inventionis not limited to the details disclosed but includes all such variationsand. modifications as fall within the spirit of the invention and thescope of the appended claims.

In the drawing:

Fig. 1 is a front elevational view of a casement window having weatherstripping applied thereto in accordance with the invention;

Fig. 2' is an enlarged sectional view taken as along the line 22 of Fig.1;

Fig. 3 is an enlarged sectional view taken as along the line 3-3 of Fig.1;

Fig. 4 is a front elevational view of a double hung window having myweather stripping applied thereto;

Fig. 5 is an enlarged sectional view taken as along the line 55 of Fig.4;

Fig. 6 is a perspective view of an end portion of a weather strip of theinvention; and

Fig. '7 is a similar view of another weather strip of the invention.

While in the accompanying drawing and following description my improvedweather stripping is shown and described as specifically applied tocasement and double hung windows it is to be understood that theinvention is not limited to such applications since the weatherstripping of the invention may obviously be applied to doors and thelike. Therefore, wherever in the following specification and claims thestructure specified is applicable to door constructions it is to beunderstood as covering the same, the word window being intended tocomprehend other closures such as doors.

Referring in detail to the drawing and at first w more particularly toFigs. 1, 2 and 3, at I!) is generally indicated the frame of a casementwindow including vertical jambs II and I2 on which are mounted sashes l3and M respectively. As here shown hinges l5 serve to mount the sashesfor movements between open and closed positions. The sashes are ofsimilar construction and sash l3 includes a hinged rail 16 and a freerail l1 while sash I4 includes a hinged rail I8 and a free rail I9.

Weather stripping is provided between the jambs H and I2 and the sashrails IG' and I8 respectively. Since the construction is the same ineach case the details are shown and will be described only' inconnection with the jamb H- and the rail l6. Jamb H is cut away toprovide an extension I!) disposed atright angles to an inner surface orshoulder 20 of the jamb.

A weather strip generally designated 2| and preferably although notnecessarily formed of springy sheet metal is mounted on the mentionedsurface of the jamb. This weather strip is an elongated structure (seealso Fig. 6). including a base plate 22 disposed against the surface 20of the jamb and alone one. edge having a depending lip 23 embedded orforced into the jamb.

The other longitudinal edge of the plate 2! is bent to extend. to theopposite side of the plate from that at which the lip 23 depends toprovide a spring-like supporting portion 24v the free edge of which isshaped to provide achannel memher or transversely arcuate bead 25 openat its side toward the base plate 22. Preferably toward its edgecarrying the lip 23 the base plate 22 is provided with perforations 26for the passage of screws or other securing means 21.

A corner portion of the rail [6 is cut away and provided with alongitudinally extending groove or recess 28 so positioned as to receivethe bead 25 when the sash is closed as in Fig. 2. With this arrangementit will be understood that the lip 23 being embedded in the jamb H airmay not blow under the base plate-22 and to the inner side 'of thewindow; Further the arm 24 being somewhat springy the normal position ofthe bead 25 is slightly outwardly of that shown in Fig; 2 and thusitwill be understood that when the sash i3 is fully closed the mentionedbead is forcedinto and .has a tight fit in the groove 23 and so air isprevented from passing between the sash and the weather strip.

A weather strip joint is provided between the free sash rails l1 and I9and the details of this joint .will be best understood by reference toFigs. 3 and '7. It will be noted in Fig. 3 that the edges. of the rails11 and [9 which. are located in opposing relation when the sashes areclosed. are cut on an incline or bevel so thatthe rail I1 actuallyoverlies a portion of the rail i9 when the'sashes are closed.

Secure d'against'thedescribed faces of the'sash rails are weatherstripsgen erally designated 30 and 3|. These strips are of identicalconstruction and each includes an elongated plate-like portion 32 havingone longitudinal edge curved in to one side of the plate to provide achannel 33 and having its other longitudinal edge portion curved in theopposite direction providing a channel 34. Intermediate its longitudinaledges the plate is provided with a bead 35. Actually channel 34 is of asize to receive the channel 33 being curved on a somewhat larger radius.

Through its channel portion 35 each plate is provided with openings 36for the passage of screws or other securing means 31 and such channelportions 35 of the plates are disposed in grooves, provided for theirreception, in the beveled edge portions of the rails I! and IS. Thestrips 33 and 3! are secured to the rails with one strip in reversedposition relative to the other. That is, larger radiused channel 34 ofthe plate 3| is at the outer side of the rail l3 while the largerradiused channel 34 of the strip 38 is at the inner side of rail [1.

Thus when the window sashes I3 and M are closed the smaller radiusedchannel 33 of each strip enters or is received in the larger radiusedchannel 34 of the other strip. The smaller radiused channels have snugfits in the larger radiused channels so that when these channels are inengagement or nested in one another as in Fig. 3 air may not blow inbetween the strips and 3 I. In addition the channels of the strips beingsnugly embedded in the beveled faces of the rails l1 and 19 air may notblow into the room by passing between the strips and the rails on whichthey are mounted.

Due to the nesting of the channels of smaller radii in the channels oflarger radii when the sashes are closed the weather strips areinterlocked with one another. However, the sashes may be readily openedsince it will be apparent that due to the beveled construction the sashl3 may be readily swung inwardly to open position after which the sashl4 may be similarly swung to open position. If it is desired that thesashes swing outwardly to open position it is only necessary in makingthe installation to reverse the mountings.

From the above it will be clear that with the construction disclosedclosing of the sashes provide a weather tight joint at both the hingeand free or meeting rail joints. Attention 'is also directed to the factthat where but a single casement sash is used one of the strips 30. 3|will be mounted on the free rail of said sash while the other strip willbe mounted on the frame jamb ad acent where said rail is located whenthe sa h is clos d. As above su gested the weather st n construc ionhere n disclosed is not rest ic ed to use with casement windows but maybe used n connection w th doors and the like.

Referring now to Figs. 4 and 5 the weather str p ng of the invention isthere shown as incoroorated in a double hung window. In such figures thew ndow frame is generally designated 40 and mounted in the same forsliding movement are upper and lower sashes 4| and 42 respectively. Suchsashes include meeting rails comprising the lower rail 43 of the uppersash and the upper rail 44 of the lower sash.

On the opposing faces of such rails are mounted weather strips 30a and3la of the construction above described in connection with Fig. 3. Thesestrips are mounted in the identical manner described, their beads 35being embedded in the rails 43 and 44 respectively. The strips beingsecured in place by screws 45 or the like ai may not pass between thestrips and the rails to which they are mounted.

Additionally when the sashes are closed the smaller radiused channels 33are locked snugly in the larger radiused channels 34 providing an airtight construction. With the double hung window it is not necessary tobevel the opposing faces of the meeting rails 43 and 44 since anyrelative movement of the sashes takes place vertically so that thestrips 30a and 3m readily clear one another.

The weather strip 2| is also useable in double hung window constructionand may be used between the top rail of the upper sash and the framealthough in the drawing it is only shown as applied between the bottomrail 46 of sash 42 and the sill 41 of the frame. This construction isshown in the lower portion of Fig. 5 and there it is noted that thestrip 2| has its base plate 22 disposed against the upper surface of thesill 41 and has its lip 23 embedded in the sill.

In its lower face rail 45 is cut away and is provided with a groove 48to receive the channel 25 of the strip 2|. The channel has a snug fit insaid groove and thus it will be seen that the contact between thechannel and groove prevents movement of air between the weather strip 21and the rail 46 while the lip 23 being embedded in the sill prevents airfrom blowing under the weather strip or between such strip and the sill.

Preferably the lower surface 49 of the rail 48 outwardly of the groove43 is beveled or inclined to correspond with the bevel or incline of theupper surface 53 of the sill 41. It is also noted with reference to therail 43 that when the sash 42 is fully closed as in Fig. 5 such rail isnot in engagement with the base plate 22 of the weather strip but isspaced somewhat above the same. With this arrangement any water drippingfrom the rail 46 onto the sill will not freeze between the rail and thesill in a manner to seal the rail to the sill and interfere with theopening of the window.

It will now be clear that the weather stripping of the invention is notrestricted in its application to hinged closures but is readilyapplicable to sliding closures such as double hung windows and the like.

Having thus set forth the nature of my invention what I claim is:

1. In a window construction, a frame including a jamb, a sash includinga rail hinged to said jamb, a metal weather strip on said jamb andincluding a base plate secured to the jamb and extending longitudinallythereof, a lip along one longitudinal edge of the base plate andembedded in the jamb, an arm integral with and supported from the otherlongitudinal edge of the base plate by an open curved portion of themetal of said strip whereby the arm is yieldingly supported in spacedrelation to the base plate, said arm inclining outwardly from the opencurve at an acute angle to said base plate, a bead on the outerlongitudinal edge of said arm, said rail cut out at a corner through aside and an edge to receive said arm when the sash is closed, and saidrail having a groove in the bottom of the cut outthrough its edge andreceiving said bead when the sash is closed.

2. In a double hung window construction, a frame including a sill and astool, a sash slidable in said frame, a metal weather strip on said silland comprising an elongated base plate secured to the sill, an armintegral with and supported from a longitudinal edge of the base plateby an open curved portion of the metal of the strip with said opencurved portion located in the corner .formed by the sill and the outeredge of the stool whereby said arm is yieldingly supported in spacedrelation to the upper side of said base plate, said arm incliningoutwardly from said open curve at an acute angle to said base plate, abead on the outer longitudinal edge of said arm,

said sash including a lower rail adapted to engage said weather stripwhen the sash is closed, said rail cut away at its inner lower cornerportion through both its bottom edge and its inner side to receive saidstrip when the sash is closed, and said rail having a groove in thebottom of the cut out through its lower edge and receiving said headwhen the sash is closed.

CARLO V. MANCINI.

